Front portion of an aircraft



FIG. 1 is a front elevation view of a front portion of an aircraftaccording to my design;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

No rear elevation view is included as no features of the claimed designare visible therein.

Throughout the Figures, broken lines showing environment or structureare for illustrative purposes only and form no part of the claimeddesign.

The ornamental design for a front portion of an aircraft, as shown anddescribed.